The transition from tummy sleeper to sleeping on your back..?

Anyone else been sleeping on their tummies since forever ago and starting to get nervous that in a month or two, this will not be an option?  The only way I can sleep is on my tummy.  I've always slept that way.  I'm 8 weeks tomorrow and the thought of not being able to sleep in my comfy position in a month or two is giving me tons of anxiety.   Anyone else experience this?   Wondering if there are certain types of pillows that will help me out with this.